"It could be a misuse of detergent, a door left open or - on the very rare side - a partfailure," she said.
“这个问题可能是用错洗涤剂、没有关门或——这种情况有点儿罕见——零件故障，”她说。
2
The corrosion spot emergence marks the beginning of the partfailure of the coating, and the corrosion spot increase and growth present the failure area enlargement.